Falling film evaporator capable of automatically detecting materials
By introducing a detection chamber and an automatic detection system into the falling film evaporator, the problem of detecting material density and quantity is solved, achieving uniform material distribution and improving evaporation efficiency, preventing accumulation, and ensuring the integrity of evaporation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-06
AI Technical Summary
Existing falling film evaporators lack material detection capabilities, resulting in uneven distribution of materials with different densities after entering the evaporator, leading to low and incomplete evaporation efficiency.
An automatic detection system comprising a detection chamber, a filter, fan blades, a rotary wheel, a helical gear, and a controller was designed. The system detects the density and quantity of materials by measuring the rotational speed of the fan blades and the movement of the slider, and a trigger controls the agitator to adjust the material distribution.
It enables automatic detection and uniform distribution of materials, improves evaporation efficiency, prevents material accumulation, and ensures the integrity of evaporation.
Smart Images
Figure CN223969499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of falling film evaporator technology, specifically a falling film evaporator capable of automatically detecting materials. Background Technology
[0002] Falling film evaporation involves adding the feed liquid from the upper tube box of the heating chamber of the falling film evaporator. The liquid is then evenly distributed into each heat exchange tube by a liquid distribution and film-forming device. Under the influence of gravity, vacuum induction, and airflow, the liquid forms a uniform film that flows downwards. During this flow, the liquid is heated and vaporized by the shell-side heating medium. The resulting vapor and liquid phase enter the separation chamber of the evaporator together, where they are thoroughly separated. The vapor either enters the condenser for condensation or enters the next effect evaporator as a heating medium, thus achieving multi-effect operation. The liquid phase is discharged from the separation chamber.
[0003] Existing falling film evaporators lack the ability to detect the evaporating material. When the material density is different, the film formation rate is different. Viscous materials are prone to accumulating after entering the evaporator and cannot be evenly distributed into the heat exchange tubes, resulting in low evaporation efficiency and incomplete evaporation.
[0004] Therefore, it is necessary to design a falling film evaporator that is highly practical and can automatically detect materials. Utility Model Content
[0005] The purpose of this invention is to provide a falling film evaporator that can automatically detect materials, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a falling film evaporator capable of automatically detecting materials, comprising a detection chamber, a detector disposed on the outer side of the detection chamber, a rotating wheel rotatably connected inside the detector, a connecting rod rotatably connected to the inner side of the rotating wheel, a sliding rod rotatably connected to the top of the connecting rod, and a trigger disposed above the detector.
[0007] According to the above technical solution, a filter is provided inside the detection chamber, and a fan blade is rotatably connected inside the detection chamber. An extension rod is provided on the rotation axis of the fan blade, and the other end of the extension rod is connected to the rotation axis of the rotating wheel.
[0008] According to the above technical solution, a first helical gear is provided on the left side of the rotating wheel, a support block is provided on the outside of the detection chamber, and a second helical gear is connected to the upper bearing of the support block. The first helical gear and the second helical gear are meshed with each other.
[0009] According to the above technical solution, a guide rod is provided at the bottom of the support block, a stop is provided at the bottom of the guide rod, a slider is slidably connected to the inner side of the guide rod, a first spring is welded to the bottom of the slider, and the bottom of the first spring is welded to the stop.
[0010] According to the above technical solution, a threaded rod is rotatably connected to the inner side of the support block, the threaded rod is threadedly engaged with the slider, and the top of the threaded rod is connected to the second helical gear.
[0011] According to the above technical solution, a buffer is provided inside the detection chamber, a filter plate is provided above the buffer, a controller is provided inside the detection chamber, a stirrer is provided at the bottom of the controller, and an evaporator is provided at the bottom of the detection chamber.
[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0013] (1) By setting up a flashing plate, the material enters the detection chamber from the top without passing through the filter to filter internal impurities, and then flows out from the bottom outlet. During the outflow process, it will hit the fan blade to make it rotate. The low-density material flows out of the filter at a faster speed, and the fan blade rotates at a faster speed. Conversely, the high-density material flows out at a slower speed. The rotation speed of the fan blade will be transmitted to the rotating wheel through the extension rod, thereby realizing the detection of the trigger.
[0014] (2) By setting a slider, the slider can detect the raw material capacity inside the detection chamber. When it slides down and triggers the stop, the material will stop entering the filter. The first spring can automatically contract and rebound. There is a control device inside. When the slider triggers the stop, the first spring will be decompressed. Then, the rebound force will send the slider back to the initial position. Then the first spring retracts. There is a certain resistance between the slider and the guide rod. Under normal conditions, it will not slide down.
[0015] (3) By setting a threaded rod, the top of the threaded rod is connected to the second helical gear. When the second helical gear rotates, it means that material is being injected and the fan blade is rotating. When the threaded rod rotates, it will drive the slider to move downward, thus achieving the effect of detecting the amount of material injected. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0017] Figure 2 This is a three-dimensional structural diagram of some components of this utility model;
[0018] Figure 3 This is a front structural diagram of some components of this utility model;
[0019] In the diagram: 1. Detection chamber; 2. Evaporator; 3. Filter; 4. Fan blades; 5. Extension rod; 6. Detector; 7. Rotary wheel; 8. Connecting rod; 9. Slide rod; 10. Trigger; 11. First helical gear; 12. Second helical gear; 13. Filter plate; 14. Buffer; 15. Support block; 16. Guide rod; 17. Threaded rod; 18. First spring; 19. Stirrer; 20. Slider; 21. Stopper; 22. Controller. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-3 The present invention provides a technical solution: a falling film evaporator capable of automatically detecting materials, comprising a detection chamber 1, a detector 6 disposed on the outer side of the detection chamber 1, a rotating wheel 7 rotatably connected inside the detector 6, a connecting rod 8 rotatably connected to the inner side of the rotating wheel 7, a sliding rod 9 rotatably connected to the top of the connecting rod 8, and a trigger 10 disposed above the detector 6. When the rotating wheel 7 rotates, the sliding rod 9 can be driven by the connecting rod 8 to slide up and down inside the detector 6. The trigger 10 can determine the rotation speed of the rotating wheel 7 by the frequency of the sliding rod 9 touching the top trigger 10 inside the detector 6, thereby preparing for subsequent detection.
[0022] The detection chamber 1 is equipped with a filter 3, and a fan blade 4 is rotatably connected inside the detection chamber 1. The rotating shaft of the fan blade 4 is equipped with an extension rod 5, and the other end of the extension rod 5 is connected to the rotating shaft of the rotating wheel 7. The material enters the detection chamber 1 from the top without passing through the filter 3 to filter internal impurities, and then flows out from the bottom outlet. During the outflow process, it will hit the fan blade 4 and make it rotate. Low-density material flows out of the filter 3 at a faster speed, and the fan blade 4 rotates at a faster speed. Conversely, high-density material flows out at a slower speed. The rotation speed of the fan blade 4 will be transmitted to the rotating wheel 7 through the extension rod 5, thereby realizing the detection of the trigger 10.
[0023] A first helical gear 11 is provided on the left side of the rotating wheel 7, and a support block 15 is provided on the outer side of the detection chamber 1. A second helical gear 12 is connected to the upper bearing of the support block 15. The first helical gear 11 and the second helical gear 12 are meshed with each other. When the rotating wheel 7 rotates, it will drive the first helical gear 11 to rotate together and drive the second helical gear 12 to rotate synchronously.
[0024] A guide rod 16 is provided at the bottom of the support block 15, and a stopper 21 is provided at the bottom of the guide rod 16. A slider 20 is slidably connected to the inner side of the guide rod 16. A first spring 18 is welded to the bottom of the slider 20. The bottom of the first spring 18 is welded to the stopper 21. The slider 20 can detect the raw material capacity inside the detection chamber 1. When it slides down and triggers the stopper 21, it will stop the material from continuing to enter the filter 3. The first spring 18 can automatically contract and rebound. An internal control device is provided. When the slider 20 triggers the stopper 21, the first spring 18 will be released from the compressed state. Then, the rebound force will send the slider 20 back to the initial position. Then, the first spring 18 retracts. There is a certain resistance between the slider 20 and the guide rod 16. Under normal conditions, it will not slide down.
[0025] The inner side of the support block 15 is rotatably connected to a threaded rod 17. The threaded rod 17 and the slider 20 are threadedly engaged. The top of the threaded rod 17 is connected to the second helical gear 12. When the second helical gear 12 rotates, it means that material is being injected and the fan blade 4 is being rotated. When the threaded rod 17 rotates, it will drive the slider 20 to move downward, thus achieving the effect of detecting the amount of material injected.
[0026] The detection chamber 1 is equipped with a buffer 14, and a filter plate 13 is installed above the buffer 14. The detection chamber 1 is equipped with a controller 22, and a stirrer 19 is installed at the bottom of the controller 22. An evaporator 2 is installed at the bottom of the detection chamber 1. After the trigger 10 detects and judges the raw material of the injected material, it can control the controller 22 to adjust the stirrer 19 at different speeds according to different materials, so that it is evenly spread on the filter plate 13 and prevents accumulation.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A falling film evaporator capable of automatically detecting material, comprising a detection bin (1), characterized in that: The outer side of the detection bin (1) is provided with a detector (6), the inner side of the detector (6) is rotationally connected with a rotating wheel (7), the inner side of the rotating wheel (7) is rotationally connected with a connecting rod (8), the top of the connecting rod (8) is rotationally connected with a sliding rod (9), the upper side of the detector (6) is provided with a trigger (10).
2. The falling film evaporator capable of automatically detecting material according to claim 1, characterized in that: The inner side of the detection bin (1) is provided with a filter (3), the inner side of the detection bin (1) is rotationally connected with a fan blade (4), the rotating shaft of the fan blade (4) is provided with an extension rod (5), the other end of the extension rod (5) is connected with the rotating shaft of the rotating wheel (7).
3. The falling film evaporator capable of automatically detecting material according to claim 2, characterized in that: The left side of the rotating wheel (7) is provided with a first helical gear (11), the outer side of the detection bin (1) is provided with a supporting block (15), the upper side of the supporting block (15) is bearing-connected with a second helical gear (12), the first helical gear (11) is meshingly connected with the second helical gear (12).
4. The falling film evaporator capable of automatically detecting material according to claim 3, characterized in that: The bottom of the supporting block (15) is provided with a guide rod (16), the bottom of the guide rod (16) is provided with a stopper (21), the inner side of the guide rod (16) is slidingly connected with a sliding block (20), the bottom of the sliding block (20) is welded with a first spring (18), the bottom of the first spring (18) is welded with the stopper (21).
5. The falling film evaporator of claim 4, wherein: The inner side of the supporting block (15) is rotationally connected with a threaded rod (17), the threaded rod (17) is threadedly meshingly connected with the sliding block (20), the top of the threaded rod (17) is connected with the second helical gear (12).
6. The falling film evaporator of claim 5, wherein: The inner side of the detection bin (1) is provided with a buffer (14), the upper side of the buffer (14) is provided with a filter plate (13), the inner side of the detection bin (1) is provided with a controller (22), the bottom of the controller (22) is provided with a stirrer (19), the bottom of the detection bin (1) is provided with an evaporator (2).